Today’s Challenge
. . . is one from our range of MATHELONA number puzzles now available in pocket book format. Your task is to make all three lines work out arithmetically by replacing the 12 ◯’s with the following numbers:
0 0 1 1 2 2 2 2 4 5 6 7
Can you successfully complete this?
◯ + ◯ = 6 = ◯ – ◯
◯ + ◯ = 2 = ◯ × ◯
◯ + ◯ = 7 = ◯ ÷ ◯
Full details of our pocket book can be found by clicking MATHELONA.
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 1st & 2nd columns of the playing board contain the following fourteen numbers:
2 10 13 16 21 22 27 33 45 48 55 56 60 70
What is the sum of the multiples of 11 listed above?
Make 316 Challenge
Can you arrive at 316 by inserting 2, 4, 5, 6 and 7 into the gaps below?
◯²×◯²–◯×◯×◯ = 316
Answers can be found here.
Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.
